def test_file_with_missing_coding_prefix(file):
with pytest.raises(LookupError) as excinfo:
_find_file_encoding(file)
assert str(excinfo.value) == 'encoding not found'
def test_file_with_utf8_plain_text_coding(file):
encoding = _find_file_encoding(file)
assert encoding.name == 'utf-8'
assert encoding.lineno == 1
def test_file_with_utf8_editor_coding(file):
encoding = _find_file_encoding(file)
assert encoding.name == 'latin-1'
assert encoding.lineno == 2
def test_file_with_utf8_coding_in_second_line(file):
encoding = _find_file_encoding(file)
assert encoding.name == 'utf-8'
assert encoding.lineno == 2
def test_file_with_utf16_coding(file):
encoding = _find_file_encoding(file)
assert encoding.name == 'utf-16'
assert encoding.lineno == 1
def test_file_without_content_2(empty_file):
with pytest.raises(LookupError) as excinfo:
_find_file_encoding(empty_file)
assert str(excinfo.value) == 'encoding not found'
def test_file_with_invalid_coding(file):
with pytest.raises(ValueError) as excinfo:
_find_file_encoding(file)
assert str(excinfo.value) == 'unknown encoding: utf-42'
def test_file_with_utf8_coding_in_third_line(file):
with pytest.raises(LookupError) as excinfo:
_find_file_encoding(file)
assert str(excinfo.value) == 'encoding not found'